Most of the information presented on this page have been retrieved from RePEc with the kind authorization of Christian Zimmermann
Des impacts sanitaires du changement climatique déjà bien visibles : l’exemple des canicules:Journal articleLucie Adélaïde, Olivier Chanel and Mathilde Pascal, Annales des Mines - Responsabilité et environnement, Volume N° 106, Issue 2, pp. 42-47, 2022
Ekeland variational principle on quasi-weighted graphs: improving the work–family balanceJournal articleM. R. Alfuraidan, M. A. Khamsi and A. Soubeyran, Journal of Fixed Point Theory and Applications, Volume 25, Issue 1, pp. 29, 2022

We prove a new minimization theorem in weighted graphs endowed with a quasi-metric distance, which improves the graphical version of the Ekeland variational principle discovered recently (Alfuraidan and Khamsi in Proc Am Math Soc 147:5313–5321, 2019). As a powerful application in behavioral sciences, we consider how to improve the quality of life in the context of the work–family balance problem, using the recent variational rationality approach of stay and change human dynamics (Soubeyran in Variational Rationality, a Theory of Individual Stability and Change: Worthwhile and Ambidextry Behaviors. Preprint. GREQAM, Aix Marseille University, 2009; Soubeyran in Variational Rationality. The Resolution of Goal Conflicts Via Stop and Go Approach-Avoidance Dynamics. Preprint. AMSE, Aix-Marseille University, 2021).

Decision-Making Tools for Informed Decisions by Health Policymakers and Managers. Ch. 14Book chapterMeesha Iqbal, Hiba Sameen, Mohammad Abu-Zaineh, Awad Mataria and Sameen Siddiq, In: Making Health Systems Work in Low and Middle Income Countries: Textbook for Public Health Practitioners, S. Siddiq, A. Mataria, K. D. Rouleau and M. Iqbal (Eds.), 2022-12, pp. 185-206, Cambridge University Press, 2022


Globalization, Fertility, and Marital Behavior in a Lowest-Low Fertility SettingJournal articleOsea Giuntella, Lorenzo Rotunno and Luca Stella, Demography, Volume 59, Issue 6, pp. 2135-2159, 2022

Declines in marriage and fertility rates in many developed countries have fostered research debate and increasing policy attention. Using longitudinal data from the German Socio-Economic Panel, we analyze the effects of exposure to globalization on fertility and marital behavior in Germany, which was a lowest-low fertility setting until recently. We find that exposure to greater import competition from Eastern Europe led to worse labor market outcomes and lower fertility rates. In contrast, workers in industries that benefited from increased exports had better employment prospects and higher fertility. These effects are driven by low-educated individuals, married men, and full-time workers and reflect changes in the likelihood of having any child (the extensive margin). We find evidence of some fertility postponement and significant effects on completed fertility, but we see little evidence of a significant impact on marital behavior. Our results inform the public debate on fertility rates in settings with lowest-low fertility, such as Germany, during the period under investigation.

When Is Product Personalization Profit-Enhancing? A Behavior-Based Discrimination ModelJournal articleDidier Laussel and Joana Resende, Management Science, Volume 68, Issue 12, pp. 8872-8888, 2022

This paper investigates duopoly competition when horizontally differentiated firms are able to make personalized product-price offers to returning customers, within a behavior-based discrimination model. In the second period, firms can profile old customers according to their preferences, selling them targeted products at personalized prices. Product-price personalization (PP) allows firms to retain all old customers, eliminating second-period customer poaching. The overall profit effects of PP are shown to be ambiguous. In the second period, PP improves the matching between customers’ preferences and firms’ offers, but firms do not make any revenues in the rival’s turf. In the Bertrand outcome, second-period profits only increase for both firms if the size of their old turfs are not too different or initial products are not too differentiated. However, the additional second-period profits may be offset by lower first-period profits. PP is likely to increase firms’ overall discounted profits when consumers’ (firms’) discount factor is low (high) and firms’ initial products are exogenous and sufficiently different. When the location of initial products is endogenous, profits are hurt because of an additional location (strategic) effect aggravating head-to-head competition in the first period. Likewise, when a fraction of active consumers conceals their identity, PP increases second-period profits at the cost of aggressive first-period price competition. Finally, we show that the room for profitable PP enlarges considerably if firms rely on PP as an effective device to sustain tacit collusive outcomes, with firms credibly threatening to respond to first-period price deviations with second-period aggressive relocations of their standard products.

This paper was accepted by Matthew Shum, marketing.

How does the exchange-rate regime affect dual-listed share price parity? Evidence from China’s A- and H-share marketsJournal articleJoseph K. W. Fung, Eric Girardin and Jian Hua, Journal of International Money and Finance, Volume 129, pp. 102738, 2022

This paper examines the impact of exchange-rate regime change on the price disparity of China’s dual-listed stocks. We use four years of synchronous intraday data of 26 pairs of dual-listed RMB-denominated A-shares and their corresponding HKD-denominated H-shares. The sample period covers the 2005 and 2008 changes in the exchange rate regime. During that time, the Chinese authorities strictly prohibited short selling of stocks and tightly regulated capital flows. In contrast to the existing general findings, we find that the law of one price can be strengthened for dual-listed stocks (DLSs) in segmented capital markets under a flexible exchange rate regime; the disparity between the DLSs is reduced under the managed float compared to the pegged regime. Moreover, we find that the magnitude of the H-share discount is positively related to the expected RMB appreciation under managed float; however, under the pegged regime the relationship is negative.

Is a clash coming when trade and climate meet at the border? The impact of the EU's carbon border adjustment on China's belt and road initiativeJournal articleJamal Khan, Yuan Li and Eric Girardin, Structural Change and Economic Dynamics, Volume 63, pp. 112-124, 2022

We empirically examine the effectiveness of EU Border carbon adjustment (BCA) in the context of BRI, by developing a hypothetical BCA scheme based on a multi-regional Input-Output model. We use various evaluation criteria such as sectoral coverage, economic condition of trade partners, compliance with trade regulations, and selection of Best Available Technology (BAT). Our analysis shows that the EU-BCA scheme covers 44% of the global traded emissions, of which 84% are generated in the BRI regions. However, the BAT principle and trade provisions reduce the coverage of BCA emissions for BRI regions, while assumptions about the carbon intensity of imports result in a further reduction. Our findings both cast serious doubt on BCA's ability to drive industrial decarbonisation and alleviate domestic producers' competitiveness concerns, and support the argument that EU-BCA may level the playing field for the EU's domestic market but may not address competitiveness concerns in other (non-EU) markets.

The wise, the politician, and the strongman: Types of national leaders and quality of governanceJournal articleJulieta Peveri, Journal of Comparative Economics, Volume 50, Issue 4, pp. 849-895, 2022

This paper assesses how national leaders’ quality of governance varies with their career and education. Using a sample of 1,000 rulers between 1931 and 2010, I identify three types of leaders: military leaders, academics, and politicians. Military leaders are associated with an overall negative performance, while politicians who have held important offices before taking power tend to perform well. Academics have on average non-significant effects. These results are partially driven by differences in policy decisions and in leadership styles. Military leaders spend less in health and education, are more likely to establish a personalistic regime, to disrespect the constitution, and to move towards a non-electoral regime, while the reverse holds for politicians. Additionally, this paper highlights the weakness of using educational attainment as a proxy for politicians’ quality, and of growth as a measure of national leaders’ performance.

Do governments stick to their announced fiscal rules? A study of Latin American and the Caribbean countriesJournal articleCarolina Ulloa-Suárez and Oscar Valencia, Journal of Government and Economics, Volume 8, pp. 100058, 2022

This paper introduces a dataset that gathers information on whether and how Latin America and the Caribbean (LAC) have complied with or deviated from implemented fiscal rules. It provides annual data on fiscal rules for 14 LAC countries from 2000 to 2020, and it considers the design features of the rules and information about numerical compliance. It provides descriptive statistics reflecting the panorama of the fiscal rules implemented in LAC countries. Additionally, it calculates compliance rates across countries, years, and rules. On average, this study finds that compliance with rules aiming to constrain debt ratios and structural balances is the highest, while compliance with fiscal balance and expenditure rules is the lowest. Furthermore, the data collection process revealed that LAC countries still have room for discretion even when they subject their fiscal policy to rules. To address this problem, the paper proposes an adjusted compliance index that considers different elements that add degrees of discretion to the rule. The study finds that the numerical compliance rates of each country are likely to be over-estimated once discretionary actions are accounted for.

Quelles conditions d'accès à l'emploi pour les jeunes mères isolées ?Book chapterStephen Bazen, Xavier Joutard and Hélène Périvier, In: Chemins vers l’emploi et la vie adulte : l’inégalité des possibles, Thomas Couppié, Arnaud Dupray, Céline Gasquet and Elsa Personnaz (Eds.), 2022-12, Number 4, pp. 97-105, CEREQ - Centre d'études et de recherches sur les qualifications, 2022

Si la présence d’un enfant pénalise l’accès à l’emploi des jeunes mères, la monoparentalité n’aggrave pas leur capacité d’accès à un premier emploi. En revanche, être mère isolée retarde l’accès au CDI à temps complet des femmes les moins diplômées, et donc leur insertion durable, à l’inverse des plus diplômées.